Answer:
The correct option is B) To help people prepare for the future.
Step-by-step explanation:
The other three options are irrelevant to scientific research on environment .
Hence the correct option is B)
The age of the students is about 0.67 years away from the 13.3 years.
The Mean Absolute Deviation is the average distance away from the mean. For the last choice, you should select more variable. Since the average is higher, there is a greater distance between the points and the mean.
when you subtract numbers with three digits its almost exactly the same as regular subtracting but with decimals.
Subtract 23 and 11 and you’ll get the answer